@@ -259,6 +259,13 @@ config DRM_AMDGPU
select BACKLIGHT_CLASS_DEVICE
select INTERVAL_TREE
select DRM_BUDDY
+ # amdgpu depends on ACPI_VIDEO when ACPI is enabled, for select to work
+ # ACPI_VIDEO's dependencies must also be selected.
+ select INPUT if ACPI
+ select ACPI_VIDEO if ACPI
+ # On x86 ACPI_VIDEO also needs ACPI_WMI
+ select X86_PLATFORM_DEVICES if ACPI && X86
+ select ACPI_WMI if ACPI && X86
help
Choose this option if you have a recent AMD Radeon graphics card.
@@ -26,6 +26,8 @@
#include <linux/pci.h>
+#include <acpi/video.h>
+
#include <drm/drm_crtc_helper.h>
#include <drm/amdgpu_drm.h>
#include "amdgpu.h"
@@ -184,6 +186,11 @@ void amdgpu_atombios_encoder_init_backlight(struct amdgpu_encoder *amdgpu_encode
if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_BL_CONTROLLED_BY_GPU))
return;
+ if (!acpi_video_backlight_use_native()) {
+ drm_info(dev, "Skipping amdgpu atom DIG backlight registration\n");
+ return;
+ }
+
pdata = kmalloc(sizeof(struct amdgpu_backlight_privdata), GFP_KERNEL);
if (!pdata) {
DRM_ERROR("Memory allocation failed\n");
@@ -90,6 +90,8 @@
#include <drm/drm_gem_atomic_helper.h>
#include <drm/drm_plane_helper.h>
+#include <acpi/video.h>
+
#include "ivsrcid/dcn/irqsrcs_dcn_1_0.h"
#include "dcn/dcn_1_0_offset.h"
@@ -4033,6 +4035,11 @@ amdgpu_dm_register_backlight_device(struct amdgpu_display_manager *dm)
amdgpu_dm_update_backlight_caps(dm, dm->num_of_edps);
dm->brightness[dm->num_of_edps] = AMDGPU_MAX_BL_LEVEL;
+ if (!acpi_video_backlight_use_native()) {
+ drm_info(adev_to_drm(dm->adev), "Skipping amdgpu DM backlight registration\n");
+ return;
+ }
+
props.max_brightness = AMDGPU_MAX_BL_LEVEL;
props.brightness = AMDGPU_MAX_BL_LEVEL;
props.type = BACKLIGHT_RAW;